package com.cn.medicalcare.controller.backstageservlet.message;

import com.cn.medicalcare.customtool.JsonTool;
import com.cn.medicalcare.pojo.AllPage;
import com.cn.medicalcare.pojo.News;
import com.cn.medicalcare.pojo.Page;
import com.cn.medicalcare.service.MessageService;
import com.cn.medicalcare.service.NewsService;
import com.cn.medicalcare.service.serviceimpl.MessageServiceImpl;
import com.cn.medicalcare.service.serviceimpl.NewsServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.Map;

@WebServlet("/backstage/message/getmessageinpage.json")
public class MessageInPageServlet extends HttpServlet {

    private MessageService messageService = MessageServiceImpl.getInstance();

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        Map<String, Object> map = new LinkedHashMap<>();
        try {
            int pagenum = Integer.valueOf(req.getParameter("page"));
            int limit = Integer.valueOf(req.getParameter("limit"));
            Page page = null;
            if (pagenum > 0 && limit > 0)
                page = new Page((pagenum - 1) * limit, pagenum * limit);
            map.put("status", 200);
            map.put("data", messageService.selectMessageInPage(page));
            map.put("count", messageService.selectMessageCount());
        } catch (Exception e) {
            map.put("status", 500);
        }
        resp.getWriter().print(JsonTool.toJson(map));
    }

}
